diff --git a/smoke-test-app/package-lock.json b/smoke-test-app/package-lock.json
index 532d2a3c..b0569c3b 100644
--- a/smoke-test-app/package-lock.json
+++ b/smoke-test-app/package-lock.json
@@ -8583,9 +8583,9 @@
       }
     },
     "@glimmer/vm-babel-plugins": {
-      "version": "0.80.0",
-      "resolved": "https://registry.npmjs.org/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.0.tgz",
-      "integrity": "sha512-ZW6+L+FzjDZngGj87zn3MRRA/MrchC7Con33mCcI36v8u48maheB351uhQe+fBVU300IfyzNMvAdwdVKS5VIFw==",
+      "version": "0.80.3",
+      "resolved": "https://registry.npmjs.org/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.3.tgz",
+      "integrity": "sha512-9ej6xlm5MzHBJ5am2l0dbbn8Z0wJoYoMpM8FcrGMlUP6SPMLWxvxpMsApgQo8u6dvZRCjR3/bw3fdf7GOy0AFw==",
       "dev": true,
       "requires": {
         "babel-plugin-debug-macros": "^0.3.4"
@@ -19493,17 +19493,17 @@
       }
     },
     "ember-source": {
-      "version": "3.28.1",
-      "resolved": "https://registry.npmjs.org/ember-source/-/ember-source-3.28.1.tgz",
-      "integrity": "sha512-dPedE1KBNiFllxzS8uiTWCf5Kofd6hrbJCt162UrTfEMZy6Pt4dZrX2kz0Dq/Fi57FrFAYkMM2cuhYCz2dbENw==",
+      "version": "3.28.4",
+      "resolved": "https://registry.npmjs.org/ember-source/-/ember-source-3.28.4.tgz",
+      "integrity": "sha512-s7kVy0E08erAHUTI/8SZZvXt3an/xb2g5K+m4Rybvo8Tr/noMk3lIdtyQkSvmgMZ/BbvoW8spS630sO0/JN4Eg==",
       "dev": true,
       "requires": {
         "@babel/helper-module-imports": "^7.8.3",
         "@babel/plugin-transform-block-scoping": "^7.8.3",
         "@babel/plugin-transform-object-assign": "^7.8.3",
         "@ember/edition-utils": "^1.2.0",
-        "@glimmer/vm-babel-plugins": "0.80.0",
-        "babel-plugin-debug-macros": "^0.3.3",
+        "@glimmer/vm-babel-plugins": "0.80.3",
+        "babel-plugin-debug-macros": "^0.3.4",
         "babel-plugin-filter-imports": "^4.0.0",
         "broccoli-concat": "^4.2.4",
         "broccoli-debug": "^0.6.4",
@@ -19753,9 +19753,9 @@
           "dev": true
         },
         "is-core-module": {
-          "version": "2.7.0",
-          "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.7.0.tgz",
-          "integrity": "sha512-ByY+tjCciCr+9nLryBYcSD50EOGWt95c7tIsKTG1J2ixKKXPvF7Ej3AVd+UfDydAJom3biBGDBALaO79ktwgEQ==",
+          "version": "2.8.0",
+          "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.8.0.tgz",
+          "integrity": "sha512-vd15qHsaqrRL7dtH6QNuy0ndJmRDrS9HAM1CAiSifNUFv4x1a0CCVsj18hJ1mShxIG6T2i1sO78MkP56r0nYRw==",
           "dev": true,
           "requires": {
             "has": "^1.0.3"
diff --git a/smoke-test-app/package.json b/smoke-test-app/package.json
index 91292639..6cd63702 100644
--- a/smoke-test-app/package.json
+++ b/smoke-test-app/package.json
@@ -39,7 +39,7 @@
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-qunit": "^4.6.0",
     "ember-resolver": "^8.0.3",
-    "ember-source": "~3.28.1",
+    "ember-source": "~3.28.4",
     "eslint-plugin-ember": "^8.14.0",
     "loader.js": "^4.7.0",
     "qunit-dom": "^1.6.0"
diff --git a/smoke-test-app/yarn.lock b/smoke-test-app/yarn.lock
index 4c018f42..20eff4d5 100644
--- a/smoke-test-app/yarn.lock
+++ b/smoke-test-app/yarn.lock
@@ -1427,10 +1427,10 @@
     "@glimmer/interfaces" "^0.54.2"
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/vm-babel-plugins@0.80.0":
-  version "0.80.0"
-  resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.0.tgz#e9a6b496501eed367b94c928dc48a954830af3b5"
-  integrity sha512-ZW6+L+FzjDZngGj87zn3MRRA/MrchC7Con33mCcI36v8u48maheB351uhQe+fBVU300IfyzNMvAdwdVKS5VIFw==
+"@glimmer/vm-babel-plugins@0.80.3":
+  version "0.80.3"
+  resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.3.tgz#434b62172318cac43830d3ac29818cf2c5f111c1"
+  integrity sha512-9ej6xlm5MzHBJ5am2l0dbbn8Z0wJoYoMpM8FcrGMlUP6SPMLWxvxpMsApgQo8u6dvZRCjR3/bw3fdf7GOy0AFw==
   dependencies:
     babel-plugin-debug-macros "^0.3.4"
 
@@ -4658,17 +4658,17 @@ ember-source-channel-url@^2.0.1:
   dependencies:
     got "^8.0.1"
 
-ember-source@~3.28.1:
-  version "3.28.1"
-  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-3.28.1.tgz#dbd00dde4e5660231c72574589e7705ed8c76b1d"
-  integrity sha512-dPedE1KBNiFllxzS8uiTWCf5Kofd6hrbJCt162UrTfEMZy6Pt4dZrX2kz0Dq/Fi57FrFAYkMM2cuhYCz2dbENw==
+ember-source@~3.28.4:
+  version "3.28.4"
+  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-3.28.4.tgz#b6ac2b1e369ef533d05164c65078b4ceafdb6390"
+  integrity sha512-s7kVy0E08erAHUTI/8SZZvXt3an/xb2g5K+m4Rybvo8Tr/noMk3lIdtyQkSvmgMZ/BbvoW8spS630sO0/JN4Eg==
   dependencies:
     "@babel/helper-module-imports" "^7.8.3"
     "@babel/plugin-transform-block-scoping" "^7.8.3"
     "@babel/plugin-transform-object-assign" "^7.8.3"
     "@ember/edition-utils" "^1.2.0"
-    "@glimmer/vm-babel-plugins" "0.80.0"
-    babel-plugin-debug-macros "^0.3.3"
+    "@glimmer/vm-babel-plugins" "0.80.3"
+    babel-plugin-debug-macros "^0.3.4"
     babel-plugin-filter-imports "^4.0.0"
     broccoli-concat "^4.2.4"
     broccoli-debug "^0.6.4"